Woman Attempts To Run, Trips Over Invisible Hurdle.

I’ve watched this video multiple times and I still have no clue what the hell just happened. This woman, who I guess is Russian, is apparently in a race with her buddy. They start the race and everything seems fine. She’s a bit slow coming out of the gate, but so what? She’s not that far behind her friend. Then, out of nowhere, she sort of jumps into the air, like there’s some kind of tiny, invisible obstacle on the course. She hits the ground like a ton of bricks, gets up, looks at the camera, and then throws her hands up and continues to run. This is the running equivalent of when that reporter started talking gibberish. I honestly have no idea what the explanation could be. Can anyone help me out here?